Improvement in paper-tube machines



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H. M. BOIES.

-Tuhe Machine.

Paper Paten'tedOci. 5,1875.

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N.PETERS. PHOTO-LITHOGRAPHER. WASHINGTON. D c.

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H. M. BOIES. Paper-Tube Machine.

Patented Oct. 5,1875.

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N.PETERS. PNOTO-LITHOGRAPHER, WASHINGTON. o C.

UNITED STATES HENRY M. BoIEs, OF SORANTON, PENNSYLVANIA.

, IMPROVEMENT IN PAPER-TUBE MACHINES.

Specification forming part of Letters Patent No. 168,366, dated October5, 18 5; application filed July 10, 1875.

To all whom it may concern:

Be it known that I, HENRY M. Bonus, of Scranton, Pennsylvania, haveinvented certain Improvements in Paper-Tube Machines, of which thefollowing is a specification:

My improvements relate to machines for forming endless tubes of paper,or cloth, or both, or of a combination of them; and my inventionconsists in the arrangement of devices whereby such tubes are formed ofseveral thicknesses of material, the one tube inside the other.

The accompanying drawings, are as follows;

Figure 1 is a side view of my improved apparatus. Fig. 2 is an end viewof the same. Fig. 3 is a horizontal section through the line w 00 onFig. 2 and Fig. 4 a vertical section through the line y g on Fig. 3.Fig. 5 is a longitudinal section, showing a modified arran gement of theroller for delivering the tube to the tube-forming mechanism.

My apparatus embraces the usual mechanism for forming a continuous tubeby lapping the edges of a strip of material over a former or tongue,after one edge of the strip has been pasted, so that the laps willadhere when pressed together. The machine includes pressv ing and dryingrollers, over which the tube is conducted, and guide-rollers by whichthe tube is carried to another tube-forming apparatus, and is guided anddelivered thereto in suitable position to have a second tube formed overthe outside of the first one. The double tube thus formed is alsocarried over pressing and drying rollers, and may then be guided intoand through a tank containing a bath of varnish or other materialdesigned to render the material water-proof, or its surfacewaterrepellent; or the water-proofing may be deposited upon the tube byrollers or brushes, between which it can be made to pass.

Referring to the drawings, A represents a suitable frame, furnishingbearings for the various shafts used in the machine. The material to beformed into a tube consists of a strip of suitable width wound on areel, 12, from which it passes over the roller b, under thepaste-reservoir 0, containing the pasteroller 0', which deposits therequired quantity of paste near the edge of the strip. From the pastingapparatus the strip passes under the tongue or former d, over the top ofwhich it is folded or lapped, as it passes along, by the folding-guidesd (11 From the forming mechanism the tube passes between thepressurerollers e e 0 by means of which the overlapping edges are firmlypressed together, and from there to the drying-rollers f f f which arehollow steam-drums, constructed and opcrating in the usual way. From thedryingcylinder the tube is conducted over rollers g g to the roller 9which is mounted upon a sliding bed, for the purpose of imparting to thetube an elastic tension by means of a spring or weight. From thetension-roller the tube is conducted over the roller h to thedelivery-roller t, which delivers the tube in suitable position to passdirectly under the tongue j of another tube-forming apparatus, by meansof which another strip of material, delivered from the reel 70 andpasted on the edge by the pasting-roller k, is formed into an externalenveloping-tube by means of the guides l l.

The delivery-roller '5 may be arranged either in front or behind thepaste-vat. As shown, it delivers the tube to the under side of thetongue, and the tube passes underneath the paste-vat. By notching thecross-bar which supports the paste-vat, as shown at i, or by means of asuitable roller, the tube maybe guided to the under side of the tonguewithout passing under the paste-vat, or by lengthening the tongue thedelivery-roller may be placed in front of the folding-guides, so as todeliver the tube into the folding-guides upon the upper side of thetongue, as shown in Fig. 5. The tube, WlllOll is now composed of twothicknesses of material, or, in other words, of two tubes, one inside ofthe other, is carried over the pressing and drying rollers, as shown,and conducted into the vat m, where it receives a coating of water-proofor water-repelling-material.

After removal from the vat the tube is sub 'jected to any suitabledrying operation, and

when dry it is ready for use for containing powder or any othersubstance which it may be desired to keep in a flexible water-prooftube. 4

My machine embraces several devices in common use in the manufacture ofpaper bags; but its distinguishing characteristic consists PATENTOFFICE.

in the devices whereby a paper tube of any form is conducted throughtube-forming apparatus, by the operation of which a strip of paper isformed into another tube outside of the first one. It will be seen thatany num-v ber of additional thicknesses of tubing may be applied byrepeating the operation, as described.

I claim as my invention in tube-forming apparatus, substantially such asdescribed- 1. The combination of two sets of tubeforming apparatus,substantially such as described, with an intermediate roller having itsbearings in a yielding bed, for the purpose of administering elastictension to the tube as it is drawn off from the first set oftube-forming Witnesses:

JOHN D. SHERER, L. M. HORTON.

